Enhanced Raman scattering from Iron electrodes

It is shown that the enhanced Raman spectra of pyridine adsorbed on Fe can be obtained by
depositing thin films of Fe onto roughened Ag substrates. An alternative strategy of inducing enhanced
scattering is also explored which relies on the deposition of a low density of small growth centres of Ag on Fe
by simple displacement reaction followed by dissolution of the smooth substrate; this procedure gives
electrodes which show spectra both of Ag and/or Fe depending on the position of illumination.